/*******************************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package org.apache.nutch.api.resources;

import java.util.Map;
import java.util.Set;

import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;

import org.apache.nutch.api.model.request.NutchConfig;

@Path("/config")
public class ConfigResource extends AbstractResource {
	public static final String DEFAULT = "default";

	@GET
	@Path("/")
	public Set<String> getConfigs() {
		return configManager.list();
	}

	@GET
	@Path("/{configId}")
	public Map<String, String> getConfig(
			@PathParam("configId") String configId) {
		return configManager.getAsMap(configId);
	}

	@GET
	@Path("/{configId}/{propertyId}")
	public String getProperty(@PathParam("configId") String configId,
			@PathParam("propertyId") String propertyId) {
		return configManager.getAsMap(configId).get(propertyId);
	}

	@DELETE
	@Path("/{configId}")
	public void deleteConfig(@PathParam("configId") String configId) {
		configManager.delete(configId);
	}

	@POST
	@Path("/{configId}")
	@Consumes(MediaType.APPLICATION_JSON)
	public String createConfig(NutchConfig newConfig) {
		if (newConfig == null) {
			throw new WebApplicationException(Response
					.status(Status.BAD_REQUEST)
					.entity("Nutch configuration cannot be empty!").build());
		}
		return configManager.create(newConfig);
	}

	@PUT
	@Path("/{config}/{property}")
	public Response update(@PathParam("config") String config,
			@PathParam("property") String property,
			@FormParam("value") String value) {
		if (value == null) {
			throwBadRequestException("Missing property value!");
		}
		configManager.setProperty(config, property, value);
		return Response.ok().build();
	}
}
